package Day07ZuoYe;

public class MethodDemo {
    public static void main(String[] args) {
        double a =getNum();
        System.out.println(a);

        int b=plus(5,6);
        System.out.println(b);
        int m= 5,n=6;
        int c=plus(m,n);
        System.out.println(c);

        int[]d = testArray(5,100);
        System.out.println("数组的长度："+d.length);
        for (int i=0;i< d.length;i++){
            System.out.println(d[i]);
        }
        int [] e=testArray(8,20);
        System.out.println("第一个元素的值为:"+e[0]);
        for (int i=0;i<e.length;i++){
            System.out.println(e[i]);
        }
    }
    public static double getNum(){
        return 8.88;
    }
    public static int plus(int num1,int num2){
        int num=num1+num2;
        return num;
    }
    public static int[]testArray(int len,int max){
        int[]arr=new int[len];
        for (int i=0;i< arr.length;i++){
            arr[i]=(int)(Math.random()*(max+1));
        }
        return arr;
    }

}

































